You can use the guides on this site to help guide you through removing the back case of the tablet. You can then try to readjust the power button to its proper position if it is indeed jammed, which it sounds like it is. This site is geared more towards helping others troubleshoot and fix their own devices. If you do not feel comfortable doing the repair yourself then you could look through the members section on this site. Some members such as myself offer mail in repairs and you can usually find their contact info on their members page.